Welcome Guest!!!

Thank you for visiting the GM Kappa Performance Forum. This forum is the only performance oriented forum for all GM Kappa Platform Enthusiasts. We hope you will join and share your experiences. Becoming a member is FREE! If you want to advertise on this forum, email KappaPerformance at yahoo.com.

Registration required to view the forum attachments. Below is a sample of the current top 25 topics. Supporting Membership has many advantages.

More information on becoming a supporting member or vendor can be found on the sub forum; Site Help and Suggestions; thread - Supporting Members and Vendors.

I know I will need to go with a new rear valance for dual exit. Does someone here know if the OE GXP valance fits properly with the DDM/Solo conversion?

Also, any thoughts on the new sound and if there are any performance gains with this change alone? What I'm thinking is how to stay in SCCA B-Street class a and Cat back exhaust update is allowable as long as it's not irrationally loud.